Swift Package Index

Build Information

Failed to build ElementaryCycles, reference master (824a7d), with Swift 6.4 for Linux on 15 Sep 2026 19:01:30 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/hectr/swift-elementary-cycles.git
Reference: master
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/hectr/swift-elementary-cycles
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 824a7d8 Release 0.4.0
Cloned https://github.com/hectr/swift-elementary-cycles.git
Revision (git rev-parse @):
824a7d8c9beff5bb4ce81ce65877e63c1bb85fac
SUCCESS checkout https://github.com/hectr/swift-elementary-cycles.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.4
Building package at path:  $PWD
https://github.com/hectr/swift-elementary-cycles.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:c77fcce225e223ac0fafed844619173fc6de8d62dd560eeb28db3182af6a282b
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest
Fetching https://github.com/hectr/swift-idioms.git
[1/393] Fetching swift-idioms
Fetched https://github.com/hectr/swift-idioms.git (0.51s)
Computing version for https://github.com/hectr/swift-idioms.git
Computed https://github.com/hectr/swift-idioms.git at 1.9.0 (0.70s)
Creating working copy for https://github.com/hectr/swift-idioms.git
Working copy of https://github.com/hectr/swift-idioms.git resolved at 1.9.0
Building for debugging...
[Constructing description]
[Planning deferred tasks]
[45 / 72] Idioms
[53 / 79] Idioms
[56 / 79] ElementaryCyclesSearch
[58 / 79] ElementaryCyclesSearch
[62 / 79] ElementaryCyclesSearch
[68 / 89] ElementaryCyclesSearch
/host/spi-builder-workspace/Sources/ElementaryCycles/Private/AdjacencyMatrix+getAdjacencyMatrix.swift:20:14: warning: associated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type 'AnyHashable'
18 | extension Matrix2D where Element == Bool {
19 |     enum Error: Swift.Error {
20 |         case indexNotFound(node: AnyHashable, nodes: [AnyHashable])
   |              `- warning: associated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type 'AnyHashable'
21 |     }
22 |
Swift.AnyHashable:1:23: note: struct 'AnyHashable' does not conform to the 'Sendable' protocol
1 | @frozen public struct AnyHashable {
  |                       `- note: struct 'AnyHashable' does not conform to the 'Sendable' protocol
2 |     public init<H>(_ base: H) where H : Hashable
3 |     public var base: Any { get }
/host/spi-builder-workspace/Sources/ElementaryCycles/Private/AdjacencyMatrix+getAdjacencyMatrix.swift:20:14: warning: associated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type '[AnyHashable]'
18 | extension Matrix2D where Element == Bool {
19 |     enum Error: Swift.Error {
20 |         case indexNotFound(node: AnyHashable, nodes: [AnyHashable])
   |              `- warning: associated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type '[AnyHashable]'
21 |     }
22 |
Swift.Array:1:23: note: generic struct 'Array' does not conform to the 'Sendable' protocol
1 | @frozen public struct Array<Element> : _DestructorSafeContainer {
  |                       `- note: generic struct 'Array' does not conform to the 'Sendable' protocol
2 | }
[77 / 89] ElementaryCycles
[80 / 90] ElementaryCycles-product
/host/spi-builder-workspace/Sources/ElementaryCycles/Private/AdjacencyMatrix+getAdjacencyMatrix.swift:20:14: warning: associated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type 'AnyHashable'
18 | extension Matrix2D where Element == Bool {
19 |     enum Error: Swift.Error {
20 |         case indexNotFound(node: AnyHashable, nodes: [AnyHashable])
   |              `- warning: associated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type 'AnyHashable'
21 |     }
22 |
Swift.AnyHashable:1:23: note: struct 'AnyHashable' does not conform to the 'Sendable' protocol
1 | @frozen public struct AnyHashable {
  |                       `- note: struct 'AnyHashable' does not conform to the 'Sendable' protocol
2 |     public init<H>(_ base: H) where H : Hashable
3 |     public var base: Any { get }
/host/spi-builder-workspace/Sources/ElementaryCycles/Private/AdjacencyMatrix+getAdjacencyMatrix.swift:20:14: warning: associated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type '[AnyHashable]'
18 | extension Matrix2D where Element == Bool {
19 |     enum Error: Swift.Error {
20 |         case indexNotFound(node: AnyHashable, nodes: [AnyHashable])
   |              `- warning: associated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type '[AnyHashable]'
21 |     }
22 |
Swift.Array:1:23: note: generic struct 'Array' does not conform to the 'Sendable' protocol
1 | @frozen public struct Array<Element> : _DestructorSafeContainer {
  |                       `- note: generic struct 'Array' does not conform to the 'Sendable' protocol
2 | }
[84 / 91] ElementaryCycles
[84 / 91] Idioms
error: SwiftCompile normal x86_64 /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/CharacterSet+characters.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile CharacterSet+characters.swift
/host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/CharacterSet+characters.swift:30:20: error: cannot find type 'UTF32Char' in scope
28 |             let p0 = UInt32(plane) << 16
29 |             let p1 = (UInt32(plane) + 1) << 16
30 |             for c: UTF32Char in p0..<p1 {
   |                    `- error: cannot find type 'UTF32Char' in scope
31 |                 guard let scalar = UnicodeScalar(c) else { continue }
32 |                 guard contains(scalar) else { continue }
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Array+appending.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Array+removing.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Bool+ControlFlow.swift -primary-file /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/CharacterSet+characters.swift -primary-file /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Dictionary+deepMerging.swift -primary-file /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/ForLoop.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Int+Times.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/IterableRandomAccessCollection.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Matrix2D+Sequence.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Matrix2D.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/RandomAccessMutableCollection.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/RegularExpressionMatchOperator.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/String+Prepending.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/String+Word.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/String+removing.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/StringProtocol+Subscript.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Vector+Sequence.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Vector.swift -supplementary-output-file-map /host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-linux-x86_64/Idioms-t.build/Objects-normal/x86_64/supplementaryOutputs-2 -target x86_64-unknown-linux-gnu -disable-objc-interop -I /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -suppress-warnings -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /usr/lib/swift/host/plugins/testing\#/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -fno-omit-frame-pointer -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-linux-x86_64/Idioms-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-linux-x86_64/Idioms-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-linux-x86_64/Idioms-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Idioms -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-linux-x86_64/Idioms-t.build/Objects-normal/x86_64/Idioms_const_extract_protocols.json -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-linux-x86_64/Idioms-t.build/Objects-normal/x86_64/CharacterSet+characters.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-linux-x86_64/Idioms-t.build/Objects-normal/x86_64/Dictionary+deepMerging.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-linux-x86_64/Idioms-t.build/Objects-normal/x86_64/ForLoop.o -index-unit-output-path /Idioms.build/Debug-linux-x86_64/Idioms-t.build/Objects-normal/x86_64/CharacterSet+characters.o -index-unit-output-path /Idioms.build/Debug-linux-x86_64/Idioms-t.build/Objects-normal/x86_64/Dictionary+deepMerging.o -index-unit-output-path /Idioms.build/Debug-linux-x86_64/Idioms-t.build/Objects-normal/x86_64/ForLoop.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 linux